[1] Controlling DNS prefetching - MDC ( 版) <https://developer.mozilla.org/En/Controlling_DNS_prefetching>
[2] Controlling DNS prefetching - MDC Doc Center ( ( 版)) <https://developer.mozilla.org/en/controlling_dns_prefetching#Controlling_prefetching_from_content>
[3] IRC logs: freenode / #whatwg / 20110310 ( ( 版)) <http://krijnhoetmer.nl/irc-logs/whatwg/20110310#l-445>
[4] DNS プリフェッチの制御 | MDN ( ( 版)) <https://developer.mozilla.org/ja/docs/Controlling_DNS_prefetching>
[5] PragmaExtensions - WHATWG Wiki ( ( 版)) <http://wiki.whatwg.org/wiki/PragmaExtensions>
Chromium watches for an HTTP header of the form "X-DNS-Prefetch-Control" (case insensitive) with a value of either "on" or "off." This setting changes the default behavior for the rendered content. A "meta http-equiv" tag of the same name can be used to make policy changes within a page. If a page explicitly opts out of DNS prefetch, further attempts to opt in are ignored.
[7] Do not allow http-equiv values curated via wiki (domenic著, ) <https://github.com/whatwg/html/commit/72d084b81fa94915518b9cf279afef87d835e88e>
[8] Do not allow http-equiv values curated via wiki by domenic · Pull Request #3279 · whatwg/html () <https://github.com/whatwg/html/pull/3279>
[9] Ensure X-DNS-Prefetch-Control is defined (or removed everywhere) · Issue #75 · w3c/resource-hints () <https://github.com/w3c/resource-hints/issues/75>
[10] Request.destination for `<link rel=prefetch>` · Issue #658 · whatwg/fetch () <https://github.com/whatwg/fetch/issues/658#issuecomment-356093141>
[11] X-DNS-Prefetch-Control - HTTP | MDN () <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control>
[12] DNS Prefetching - The Chromium Projects () <http://dev.chromium.org/developers/design-documents/dns-prefetching>
[13] Bits Up!: DNS Prefetching for Firefox () <http://bitsup.blogspot.jp/2008/11/dns-prefetching-for-firefox.html>